SPICE
Setting: context-where is this being used?
Population: who are users?
Intervention: what is being done?
Comparison: what are alternatives?
Evaluation: what does success mean?

Levels of evidence

Northwestern
first usability test in 2001
focused on Electronic resources/home-grown resource finder
2nd test
how are people using catalog?
Data mining
tried not to make assumptions
dispelled some myths

Data analysis
pick a page to analyze
put data into magic box; out comes user paths that end on selected page
can see # of clicks to the page
ideal paths and less than ideal paths
how can you nudge users back to where they meant to go?